Warping



Juneau, 1925.

H. D. COLMAN wARPING original Filed sept. 1o, 1917 9 Sheets-Shes# l\FIC. 2,

9 Sheets-Sheet 2 WARPI NG TIITITH H. D. COLMAN Original Filed Sept. 10,1917 June 30, 1925.

6m-messes:

June 30, 1925.

,H. D. coLMAN WARPING Original Filed Sept. lO, 1917 9 Sheets-Sheet SFIC-.5.

June 30, 1925. 1,544,055

H. D. COLMAN WARPING Original Filed Sept- 10, 1917 e sheets-sheet 4FICQ.

FlChll. 7 2 33 June 30, 1925.

H.v D. COLMAN WARPI NG Original Filed Sept. 10. 1917' 9 Sheets-Sheet 5"HHH Il ILL. L3 Il www Imilil .lll 1 A Q' Mmsses: O2

H. D. COLMAN 4June 3o, 1925.

` WARPING original Filed sept. 1o, 1917 9 Sheets-Sheet 6 WWSSGS:

June- 30, 1925.

H. D. COLMAN ,WARPING Original Filed Sept. lo, 1917 9 Sheets-Sheet 7W/nesses SGE June 30, 1925. 1,544,055

H. D. CLMAN wARPING Orginl Filed Sept. l0, 1917 9 Sheets-Sheet 8 FIC..241., 44

June- 3.0, 1925. 1,544,055

H. D. COLMAN WARPING origina Filed sept. 10, 1917 9 sheetssheet 9 IH HHilll yPatented June 36, 1925.

UNITED STATES y N v1,544,055 PATENT oFFlcE.

How/Ann n.- coLnAN', or nocnroa'n, ILLINOIS, AssrGNon, BY MEsNtEASSIGNMENTS, f' To Encan s. NETHERCUT, or' EvANsToN, ILLINOIS.

WARPING.

Application led September 10, 1917, Serial No. 190,501. RenewedFebruarylO, .1923.

'To 'all wlw/m# may concern:

' Be it known that I, HOWARD' D. COLMAN, a citizen of the United States,residing at Rockford, in the county of Winnebago and due slackening ofthe threads, thereby ob-v State of Illinois, have invented certain newand useful Improvements in Warping, of

.which the following is a specification.

This inventionrelates to the winding of' yarn upon a warp beam from.individual yarn masses which rotate to supply the yarn.

By means of-inventions disclosed in prior patents granted to me, thetime required to replenish a warper creel has been much reduced and thewinding speed has been increased to several times that heretoforepossible,vwhereby production has been greatlyl increased.l The presentinvention has for its general object toincrease production still furtherby reducing the time consumed in connecting new supply yarn masses to anempty warp beam, and in separating the completed beani from the supplyyarn4 mounted upon thecreel in close proximity| to their respectivesupply, yarn masses. The detectors have been arranged to close anelectric circuit upon the breakage or unviating the use of muchmechanism 'which otherwise would be necessary owing to the widedistribution of the detectors and effecting more prompt actuationof thecreel brakes, the beam brake andthe mechanism that throws out the drivefor the Warper.

One of the objects of the invention is to provide means for exerting alight pressure upon the supply. arn.- masses to prevent coastingthereof' w ile. the warper is being operated .at low speed or incase'the threads be casually disturbed.

invention will be apparent from the following disclosure of oneembodiment thereof. Y'

In the accompanying drawings, Figure 1 is a side elevation of anapparatus embodying the features of my invention, many of the supplyyarn masses and associated parts being omitted for the sake ofclearness. Fig. 1a is a fragmental view. of a comb that may be used onthe Warper. Fig. 2 is a top plan view of the apparatus, the resettingmechanism and the devices for supporting extra cheeses being omitted.Fig. 2 is a view of the beam brake. Fig. 2b illustrates one Way in whichthe threads ma' be@ guided in passing from the creel to t e warper. Fig.3 is a topplan view of the creel. Fig. 4 is a fragmental perspectiveview illustrating the pivot for the lower end of each gate and the stopsfor limiting swinging mo' ement of the gate. lFig. 5 is a fragmen altransverse vertical sectional view of the creel. Fig. 6 is a horizontalsectional view taken in the plane 'o dotted line 6 of Fig. 7. Fig. 7 isa view generally similar to that of Fig. 5.- Fig. 8fillustrates two ofthe detectors with which the creel is provided. Fig. 9 is an inner sideview of a portion of the creel showing the braking mechanism. Fig. 1 0isa fragmental sectional view of one of the creel brakes. Fig. 11 is asectional view taken in the plane of dotted line 11 of Fig. 10. Fig. 12is a section on dotted line 12 of Fig..10. In Figs. 11 and 12 the brakemay be assumed to be moving/into braking position, having touched thecheese.

13 is a view similar to Fig. 12, but show-1 ing the braking pressure asbeing applied.4 Figs. 14 and 15 illustrate-one of the detectors and thecircuit-closer operated thereby. Fig. 16 illustrates a part of theelectrical connections between the detectors and the electromagnet. Fig.17 is a fragmental top plan view of one 'of the gates with which thecreel is provided. Fig. 18 i asection on 4dotted line 18 of Fig. 15.fragmental top plan view of av detector showing how the detector maydraw the thread into loops to take up slack in the thread. Fig. 20 is afragmental view of some of the operating connections between theresetting mechanism -and the warper.v Fig. 21 is aside elevation of theresetting l mechanism. Fig. 22 is an elevation of the 'Further objectsand advantages of the opposite side of said mechanism. Fig. 23 is an endelevation of the resetting mecha nism looking from the left-hand side of22. Fig. 24 is a ragmental view of theresetting mechanism showin the'parts in the drag pressure position. ig. 25 is a top Fig. 27 is aragmental view of the resetting.

mechanism showing approximately the position assumed by certain partswhen the brakes are applied. Fig. 28 illustrates a.

brake for the resetting mechanism. Fig. 29

is a section on line 29 of Fig. 26. Fig. 30 is i i lqawsvegction on line30 of Fig. 26. Fig. 31 is a view on dotte f line 31 of Fig. 26. Fig.

32 is a fragmenta top plan view of thefdriv ing mechanism for thewarper. Fig. 3,3 is a vertical sectional view taken approximate` ly inthe planeof dotted line 33 of Fig. 32. Fig. 34 containsv a diagram ofthe electrical circuits used in this apparatus and illustrates invertical section a speed-controlled switch included in the circuits.Fig. 35 is a topplan view of certain parts shown in Fig. 33.

While the invention is applicable to the rewinding of various forms ofyarn masses, it is herein disclosed as embodied in a machine forrewinding yarn masses in the form of cylindrical cheeses a (Fig. 6).Each cheese consists of yarn spirally wound upon a tubular core b. Thecreel in which the cheeses are mounted may be of any suitableconstruction, that herein shown being, generally similar to the creeldisclosed in Patent No. 1,207,138, dated December 5, 1916. The cheesesare rotatably supported upon spindles 1 (Fig. 5), four cheeses in thepresent embodiment being carried by each spindle. The cheese cores Varenot mounted drectly `uponthe spindles, but are carried by rollers 2which are rotatably supported upon the spindles. Preferably vballbearings are interposed between the rollers 2 and the spindles,4 inorder that the cheeses may re vvolve with great freedom. It will beunderstood, however, that in certain aspects the present invention isindependent of the particular means herein shown for supporting thesupply yarn masses..

' In the construction herein illustrated, the Yspindles 1 are arrangedin groups of three, each group being fixed to a hase 4 (Figs. 5 and 6).Each base 4 withs itsrows of spindles 1 will hereinafter be termed atrident. The tridents are removable from the framework of the creel andare adapted to beused at the winder as a receptacle for the cheeses whenthe latter are removed from the winder. Y

The framework of the creel may be of any suitable character, althoughthe construction herein disclosed is very advantageous. As herein shown,it consists of two upright frames 6 and 7 (Fig. 2) which are adjacenteach other at one end and separated Jfrom each other at the opposite endso as to constitute a Vshape structure. The

frames 6`kand 7 are suitably braced and connected together. In the"particular embodiment selected for illustration, each of the frames 6and 7 is composed of six bays,

'left-hand side of each bay are sockets 8 (Figs. 5 and 6) each intendedto receive one end of the base 4 of a trident. At the righthand side ofthe bay are sockets 10 (Fig. 5)

to receive the tips of the spindles. As will be lapparent from Figs. 1and 2, the spindles 1 are disposed horizontally and extend lon--gitudinally of the frames 6 and 7. Each bay is provided on its outerside with a hinged gate 12- (Fig. The gate may be pivoted in anysuitable manner. The present embodiment comprises a pivot for the lowerend of the gate, as shown in Fig. 4, 13 being a pivot pin secured to aframe bar 14. The gate is held out of contact with the frame bar 14 bymeans of an annular flangeor washer 15 on the pin 13. The extent of theopening movement of the gate is limited by a stop 16 secured to theframe bar 14. The closed position of the gate is determined by a stop 17secured to the frame bar 14. The upper end of the gate consists of across-bar 18 (Fig. 16) which has an opening through which a pivot pin 19extends. Said pivot pin is carried by a casting 20 (Fig. 7) which isrigidly secured in the creel framework. The gate is held shut by meansof a latch 21 pivoted to the casting 20 at 22, said latch being arrangedto engage the end of the bar 18 as shown in Figs. 6 and 7. 23 is atension spring which normally holds the los lio

prises detectors mounted upon the gates 12,

there being a detector for each cheese. The detectors for each verticalrowv of cheeses are mounted upon a support which may have the form of an.upright square-tube 26 (Figs. 15 and 18). Each gate comprises four suchtubes. Each detector consists of an arm 27 (Fig. 15) preferably formedof a piece of wire bent to provide a pivot '28, the arm being in theform of a loop so asv to provide two parallel portions against which thethread bears. ,These parallel portions are bent so as to provide notches29 (Fig. 14) through which the thread may run. As best shown in Fig.6,'the detector or pivoted arm 27 is located in the vertical plane inwhich the cheese-rotates. The thread changes direction. at the thedetectorV and runs to a comb on the warper. The tension of the threadnormally holds the arm 27 in contact with. a stop rod 30 against theJaction of gravity. At the side toward which the arm 27. tends to fallare two` plates 31 and 32, against the edges 33 of which the thread iscarried by the arm 27 if the thread becomes slack. As the arm' 27 swingsdown, the thread is drawn into the form of two loops, as shown in Fig.19. 34 isv a guide plate which, like the plates 31 and 32, is Secured tothe tube 26, the uppe'r portions of" said plates being parallel. Theplates 32 and 34 are secured together by the stop rod 30. The arm 27extends above the plates 31, 32 and 34. In the warper-replenishingoperation, the thread passes into operative relation to the detector bymoving upwardly along the curved edge 35 of the plate 34, the edge 354serving to guide the thread into the notch 29 ofthe adjacent portion ofthe arm 27. The rounded upper end of the .plate 32 a1- lows the threadto spring over the upper end of said plate 32 into contact with thesloping upper end of the arm 27, the thread being thus guided into thespace between the arm 27 andthe edge 33.

` is.arranged to swin When the arm 27 falls into the dotted-lineposition indiocated at in Fig. 14, an electric circuit is closed,whereby the brakes. are released to action. A ,contact arm 36 isattached to the pivot 28 of the arm 27 and into contact with an electricconductor. 3

tion shown in said figure, in the course of 'which movement the pivot 28rotates vwithin .the clip 36 until .the said pivot has madel a littlemore than a -quarter of a revolution Within the clip,l when theresiliency of the clip causes the clip to swing through the remainder ofthe half revolution. The arm 27 may then be permitted to swingfreelyinto the position shown at y in Fig. 14, in which position the arm36 is out of contact with the conductor 37. To restore the detector tooperative condition, the arm is\ swung up into contact with the stop 30,in which movement vtheA arm 36 is carried against one -wall of the tube26, the `con-- tinuing upward movementof the detector arm 27 causingrelativeA rotation between the pivot 28 and the arm 36 until the lattersnaps into normal relation to said pivot.

It will be apparent that the tube 26 serves extending longitudi-4 nallyof and within the tube 26.

to enclose the contacts 36 and conductors 37 and thus keeps said partsfree from dust and lint. It will also be seen that each tube 26 and itscontained conductor 37 and contacts 36 constitute a series of enclosedelectric switches. I

In Warpers of the prior art where electric stop motions were employed,`it was necessary to use a current of relatively low voltage for thereason that the electriccontacts `were exposed and the use of highvoltage Would have involved danger of fire due to the accumulation oflint and the like at the contacts.v Such Warpers, however, were of verylimited usefulness, since lint, dirt, rust, etc., collectingat thecontacts prevented or rendered uncertain the passage of the lowvoltagecurrent. I employ a currentv of sufficiently high voltage to ensurepassage. of the current between the contacts'36 and 37 when the switchis closed, the use of suchy voltage being rendered safe by reason of thefact that each switch is completely enclosed and thus kept free of lintand dust.

The upper end portions of the conductors 37 of the several tubes 26comprised in each gate extend up through andare insulated from thecross-bar 18, as shown in Fig. 16, the' upper ends of the conductorsbeing secured to a bar, 8 mounted on and insulated from the gate. Theend of the bar 38 which is adjacent to the pivot pin 19 is connectedinto an electric circuit by means of a wirev 39 (Fig. 17) secured tosaid bar and coiled around the pivot pin, the coil being insulated from'the pivot pin by means of a sleeve 40 of insulating material and beingenclosed within a similar sleeve 41. The upper end of the wire 39 isconnected to a binding post 42 carried by an insulating block 43 securedto the framework of the creel. The wires 39 of the several bays areelectrically connected in any suitable manner into the circuit of anelectromagnet 44 (Figs. 22 and 34). When.said circuit i's groundedthrough the dropping of any one of the detector'arms 27, theelectromagnet 44 is energized and thus caused to withdraw a detent whichnormally holds lthe brake mechanism inoperative;

Referring now to the creel brakes. any given stop/each cheese .coastsaboutthe same amount as .any of the other cheeses, because the cheesesare all approximately of the same size and because of the character ofthe braking surfaces. While these 'surfaces maybe of any suitable type,form or arrangement, the present embodiment utilizes the periphery ofthe cheese as one of the braking surfaces, the other# being a polishedmetal'plate. The rubbing of the yarn against the plate in stopping keepsthe plate 'bright so that thel surface condition of the plate remainsverynearly constant. As stated, the other braking surface is the yarn,

and as a new surface is constantly being presented to the brake (owingto the unwinding of the yarn) there is no change in the characteristics`of 'this surface due to wear, and other changes due to such causes `astemperature and humidity affect all of the cheeses alike.

45 (Figs. 5 and 9) indicates the polished /metal plate or arm comprisedin each cheese 1,0 brake. The arm ,45 preferably presents a convexsurface to the yarn mass and is arranged to bear against the middle ofthe periphery of the cheese in order that when the arm is pressedagainst the cheese the 15 latter shall not be tilted or displaced to oneside so as to bring its core binto contact `with an adjacent core. Thebrake arms 45 are pivotally mounted upon horizontal rock shafts 46 whichare supported upon the inner'side of the creel frame. Preferably theAbrake arms 45 extend upwardly from the `shafts 46 so that thepressurepof the arms against the cheeses shall be in a horizontal ordownward direction'rather than an upf 2,5 ward direction, thus avoidingany lifting of the cheeses with consequent tendency to tilt. the latterinto contact with adjacent cheeses.

n For each brake arm thereis a sleeve 47 (Fig. 10) which surrounds andis rigidly secured to the shaft 46 by means of a cotter pin 48.Enclircling the middle portion of said sleeve and secured theretoby thepin' 48 are twwo notched flanges 49 and 50. A. relatively light torsionspring 51 surrounds the sleeve 47. One end of said spring is hooked tengage the brake arm an'd the other end is hooked to engage in notchesin y the fiange 49. Bylshifting the hooked end of the spring from onenotch to another,

theI torsion of the spring may be adjusted to the desired point. Thetorsion spring 51 normally holds a shoulder 52, (Fig. 11 on the brakearm against a stop shoulder 53l on the flange 49. stronger torsion 45spring 54 surrounding the sleeve -47 has one end hooked to engage innotches in the flange 50. The other end of the spring 54 bears against alug 55 (Fi 12) on the flange 56 of a collar 57, sai collar beingrotatably mounted upon the sleeve 47. Normally the torsion spring 54holds a lug 58 on the flangev56' `in contact with a stop lug 59 ontheadjacent end of the sleeve v47.

l When the shaft46 turns to apply braking pressure to the cheeses, themovement of the stop lug 59 allows the flange 56 alsoto turn until thesurface 60 (Fig. 12) on said flange engages the portion 61 of the brakearm 45 (as 1n Fig.: 13),

. 05. with relation 'to the shaft 46 is indicated in' continuingmovement of 4 6 the shaft' 46 -causingpressure to be ap lied Figs. 11and 12. When the brake is to be applied, the shaft 46 turns farther thanis necessary to place the brake arm against the cheese, as indicated bya comparison of Figs. 12 and 13, the surface 60 being pressed againstthe portion 61 of the brake arm and the torsion of both springs 51 and54 being exerted to brake the cheese. The brakeapplying movement of theshaft 46 is so rapid that the pressure of both springs is appliedpractically instantaneously to the` cheese. In the return movement ofthe shaft 46, however, the shaft is first turned far enough to withdrawthesurfaceA 60 from the portion 61, but not far enough to place theshoulder 53 against the shoulder 52. In

vthis position of the shaft 46, only the p ressure of the spring 51 isbeing exerted against the cheese through the brake arm V45, thispressure being nearly sufficient to cause slight resistance to rotationof the cheeses. Such resistance is necessary or desirable whenthesection beam B is being revolved slowly preparatory to shifting tohigh speed. The drag or yarn-tensioning pressure on the cheeses also 1sof advantage when the ap'paratus is at rest, as it prevents the cheesesfrom revolving too freely when threads are drawn forward in replenishingthe creel or piecing up broken threads, or inthe event that any of thethreads are accidentally disturbed. The drag pressure, however, isnecessary only when thecheeses are mounted to revolve very freely, as isthe case in the construction herein disclosed. In a creel wherein thecheeses are not mounted to rotate with great freedom, the constructionproviding the drag pressure may be dispensed with.

, Themeans for'tur'ning the shafts 46 comprises two'vertical bars 62(Figs. 6 and 7), one for each of the creel sections 6 -and 7, said barsbeing suitably guided upon the creel sections. Each .bar has fixedthereto a rack 63 for each of ther shafts 46 of its vcreel section,except the lowermost shaft.

To all of said shafts, except the lowermost shaft, are fixed segments 64that mesh with the racks 63. lOn account of limitations of space,thelowermost shaft 46 is not actuated directly from a rack on the bar 62but is driven from the next higher shaft through sprocket wheels 65 andasprocket chain 66. To the'. upper ends of the bars 62 are securedbearings 67 (Fig. 23) kto receive the end portions of ahorizontal rod68. Said rod is gui-ded for vertical movement by means of two verticalchannel guides 69 (Figs. 3 and 23) secured in the framework 'of themachine, there being antifriction rollers 70 on the ends of the rod 68.The rod 68 is raised and lowered to actuate the racks by means includingrods 71 connected to the rod 68 and pivoted to crankvarms 72 (Figs. 22and 23). The crank` arms 72 are fixed upon a rock shaft 73. The meansfor turning the shaft 73 in the direction to apply the brakes comprisesan arm 74 fixed upon said shaft, to v'which arm is anchored one end of agroup of tension springs 75. The other end of theV` group of springs isadjustably connected to a fixed point, as, for example, by means of abolt 76 extending slidably through an opening 77 in the machineframework, said bolt having a nut 78 (Figs. 3 and 22) /thereon Rigidwith the nut 78 is a hand wheel 79 by means of which the tension of thesprings 75 maybe adjusted. The springs 75 are normally restrained fromturning the shaft 73 by means of a dog 80 (Figs. 22 and 24) pivoted at81 .upon an arm 82 fixed on the shaft 73. The'dog 80 has a counterweight83 that normally rests against a stop 84von the arm 82. 85 is a stopvlug on the arm 82 to limit movement of the dog 80 in the oppositedirection.- The dog 80 normally bears against a flattened surface orshoulder 86 on a pivot 87 rotatably mounted in the machine frame. Rigidwiththe pivot 87 is an arm 88 (Fig. 22) the endl of which underlies afinger 89 (Figs. 22 and 26). The finger 89 is fixed upon a shaft 90 andis normally Lheld in the position shown in Fig. 22 by means of aspring-91 (Fig. 31) connected to an arm 92 which is fixed on they shaft90, the action of the spring being vlimited by the engagement of astoparm 93 on the shaft with a stationary portion 94. Fixed upon the shaft90 is an arm 95 (Figs. 26 and 29) carrying a lug 96 which is arranged tobe engaged by a lug 97 on the hubof an arm 98, said arm being rotatablymounted upon the shaft 90. .The arm 98 carries an armature 99 which isarranged tobe attracted by the electromagnet 44. 100 is a stop tolimitthe fall of the 4armature when the electromagnet is deenergized. Itwill be seen 'that when the electromagnet 44 is energized through thefall of any one of the detector arms 27, the armature 99' will belifted, the? projection 97 will strike the projection 96 and cause theshaft 90 to turn against the tension ofthe spring 91, and the finger 89will be withdrawn from engagement with the arm 88. 'l'he pressure offthe dog 80* against the surface 86 will then cause lthe pivot 87 to turnuntil the dog 80 is released, whereupon the springs 75, acting throughthe arm 74, turn the shaft 73 in the direction to apply the brakes tothe-cheeses. At the end of the brake-applying movement of the shaft 73,

the arm 82 1s in approximately the positionu represented in Fig. 27. 101(Fig. 22) is a'bufij'er against which the arm 88 is thrown under thepressure of the do-g 80. As soo-n as the dog 80 has swung do-wn past thepivot 87, the arm 88 drop-s back into contact with a stop 102 (Figs. 22and 26). l f' It wlLbe seen .that the pressure forbraking the cheeses isfurnished by the springs 75. The torsion springs 51 and9 54 constituteyielding means for transmitting such pressure to the cheeses. Beingyieldingly connected to the rock shafts 46, the brake arms 45 areenabled to move into contact.

with all' of the` cheeses `notwithstanding slight dierences in thediameter` of the cheeses. The springs 75 contract untiltheir force iscounterbalanced by the pressure of the torsion springs 51 and 54 againstthe magnet 44.be cut ofl','thebrakes shall be automatically set.Accordingly there is provided an electromagnet 103 (Figs. 22'and 30),the armature 104 of which is carried by a weighted lever 105 looselymounted oil the shaft 90. On the lever 105 is a lug 106 (Figs.` 26 and30) which is arranged to strike the arm 95 and thus withdraw the finger89 from the arm 88. The magnet 103 is connected into a normally closedcircuit receiving energy from the source that supplies energy to thecircuit of the magnet he employed is diagrammatically illustrated inFig. 34. 108 is a switch controlling the supply of'electric energy tothe circuits of the magnets 44 and 103. Should the supply of current t`othe conductors 37 fail, as through the opening of the switch 108, themagnet 103 will be deenergized, whereupon the creel brakes will beautomatically appliedas hereinbefore described.

'In order thagtf, lthe flow of current to ground shall be'finterrupte'das soon as the dog has been-released, I provide a switch 109comprisingtwo contacts 110 carried by but insulated from the shaft 73(Figs. 22 and 34). Lach contact-110`is1 arranged to bridge two contacts111 included in the circuits containing the conductors 37 and theelectromagnet 44. When the shaft 73 turns 'to apply the 'creel brakesthe contacts 110 are carriedout of engagement with the contact "fingers111', thereby interrupting the flow of current to ground through thefallen 44. One arrangement of circuits which-may detector and the magnet44.\ As soon as the of the warper. The 'yarn wound around the beamBrests upona friction driving drum 122. Said'drum lfixed upon a shaft4123 ldescribedin my .copending application Sewhich is driven from ashaft 124 by means of a sprocket chain 125 running over sprocket wheels126 and 127 fixed on the shafts 123 and 12A, respectively. The shaft 124is supported in the rear portion of the warper framework. Saidshaft isdriven by means of a drive-head fully illustrated and said brake armsare pivotally secured to the framework of the warper at 132 (Fig. 1).Said arms are arranged to 'be drawn into braking engagement with thedrum 130 by tension spring means 133 (Fig. 2a) Normally the brake arms131 are held apartV and out of engagement with the brake drum by meansof a lever 134 and links 135, said links having pin-and-slot connectionswhereby the.

lever 134 is permitted to turn after the brake arms 131 have engaged thebrake drum. The lever 1 34 is fixed upon a shaft 136, to which isattached a crank arm 137 (Fig. 1). The crank arm 137 is connected bymeans of a rod 138 to a crank arm 139 which is iixedupon a rock shaft140. Rigid with the shaft 140 is a crank arm 141 which is connected bymeans of a rod 142 with a crank arm 143 fixed on the shaft 73. It willbe seen that when the shaft l73 is released to the action of the springs7 5, the lever 134 will be turnedto allow the spring -means 133'to drawthe brake arms 131 into clamping engagement with the brake drum 130,

thereby stopping the rotation of thesection beam. By reason of thelost-motion connections between the lever 134 and the links 135, thebeam-brake pressure is independentv of any braking forces beingexerted-in', the

h Creel.

The means for turning the shaft 73 to withdraw the brake arms 45 fromthe cheeses and remove the brake arms 131 from the brake drum 130comprises a wheel 144 (Figs. 22 and 24) mounted to rotate on an axisparallel with the shaft 73. )Vhen the wheel 144 begins to turn, a cam145 on said. wheel engages a roller stud 146 on-the arm 82 and liftssaid arm. Just before the cam 145 passes out from under the roller stud146, a cam 147 on the wheel 144 engages'a roller 148 on the arm 82 andlifts said arm into the position shown in Fig. 24, the roller 148restinguponia dwell 149. In this position of the arm 82 the rock shafts 46 have`been turned far enough to remove the surfaces 60 from the portions 61of the brake arms 45 so that the brake arms are pressed against thecheeses onlywith `the pressure provided by' the springs 51. In this position ofthe parts the brake arms 45 exert only sufficient pressureagainst the cheeses to prevent too free rotation of the cheeses duringthe operations incident to the repairing of broken threads and thereplenishing of the cree] and in preparing to shift to high speed. 'Thearm 82 remains* in the position shown in Fig. 24, namely, the dragposition, until the operative is ready to set the warper to running athigh speed. The wheel 144 is then caused to resume rotation whereuponthe cam 150 raises the arm 8.2 somewhat beyond its normal position, thuscarrying the dog 80 past the shoulder 86. As soon as the cam 150 leavesthe roller 148, the springs75 cause the dog 80 to be pressed againsttheshoulder 86. The arm -132 is thus locked in normal position, the

pivot 87 being held against rotation by reason of the engagement of thefinger 89 with the arm 88.

The brake-resetting wheel 144 is driven through a train of reductiongears 151 from a drive pulley 152. Alongside the drive pulley '152 is aloose pulley 153. A drive belt/154 (Fig. 1) is 4arranged to be shiftedteand from the pulley 152 by means of a belt shifter comprising abelt-engaging arm v155 and a lever 156, saidl arm and leverv beingpivoted on the axis 157 (Fig.

Normally the parts 155 and 156 are rigidly connected together vby meansof a spring plunger 158 carried by the part 155 and engaging a notch 159in the part 156. A spring 160 acting on the shifter member 156 normallyholds the belt on the loose pulley 153. On the rock shaft 73 is fixed acam 161 (Figs. 23 and 25) which is arranged to operate against aprojection 162 on the 4belt shifter member 156 to swing the belt shifterin the direction Vto place the drive belt on the tight pulley 152. Whenthe shaft 73 is turned to apply the creel brakes and the beam brake, ashereinbefore described, the cam 161 operates the belt shifter to'placethe belt on the tight pulley, whereby the wheel 144 is set in motion.

As the wheel 144 raises the arm 82, the

cam 161 is withdrawn from the projection 162 on the shifter lever 156.In order toz prevent the spring 160 from shifting the belt to the loosepulley until the dwell 149 has reached the roller '148, I provide a lockfor the belt shifter, which lock consists of a latch 163 (Figs. 24 and25) that is pivoted at 164 tov the supporting framework, said latchhaving a shoulder 165 arranged to engage anarm 166 that is rigid with,the shifter lever 156.. When the shifter ,lver is moved to place thebelt upon the vtight pulley, theshoulder 165 on the ylatch 163.continuing to turn throughi drops behind the am 166 Land thus locks thebelt shifter. The means for disengag'ing the latch 163 from the arm 166comprises a cam 168 on the wheel'144. When the dwell 149 l has reachedthe roller 148 he can1'168 raises the. latch 163 and thus releases thebelt shifter'to the action ofthe spring ,160, whereupon the belt isshiftedvto ther loose pulley 153. At the same time a brake lug 169 (Fig.28) which is 'rigid with, the belt shifter `arm 155 is'pressed againstthe tight pulley 152 to prevent the wheel 144'fron1 omentum.

, When the operative is ready to set the ma,-

lImmediately after the cam 150 has chine in operation under high'speed,she

manually operates the belt shifter by means hereinafter described toplace the belt up'- on the tight pulley 152, the latch 163 dropping intoposition to 4lock the belt shifter as soon as the cam 168 leavesthelatch. passed the roller 148, a cam 170 (Fig. 24) on the wheel 144engages the latch 163 and thus releases the belt shifter tothe action ofthe spring 160 whereupon the belt is shifted to the loose pulley and thebrake lug 169 isl applied to the tight pulley 152.

Whenever the belt shifter is operated to -place the belt on the tightpulley, means is actpated to raise the lever 105 in case said lever. hasbeen released by opening of the circuit of the electromagnet 103.` Thismeans comprises a link. 171 pivoted at one lend of the shifter arm 155and at its other per end of said rod being bent .to underlie thearmature 104m Whenever the brakes are applied through an opening of thecircuit of the electromagnet`103, the belt 154'is shifted to the tightpulley 152 )through the action of the cam 161, and the member 17 3 israised to lift the 'arm 105 into position `where the 4magnet 103 canattract the armature 104 when current' is said magnet.

After the warper stop motion has stopped again supplied to .the.w,arper,the operativel finds -the threadend on the beam and pieces up thethread. Tov facilitate the finding of the end on the beam, the operativemay set the beam in slow rotation by depressing a treadle-174 (Fig. 1)which is pivoted tothe warper framework on the axis 175. Rigid with saidtreadle is an arm 176 which has a pin-andslot connection with an arm'177 fixed to a shaft 178. Rigid with theo shaft 178 is a crank arm 179(Fig. 33,) which is connected by means of the link 180 to one arm of abell crank'181fwh/ich` is looselyl pivoted upon a shaft 182 carried bythe warper framework. The other arm of said bell crank is conn'ec'tedlthrough a link 183 with a frame 184 The sprocket wheel 189 is rotatablymounted in the frame 184 and is lrigid with a pinion 191 that meshes atall times with a `spur gear Wheel 192 which is rotatably supported inthe warper framework concentrically with the haft 124. Upon the'hubl ofthe gear whee 192 is formed an annular series of teeth 193 (Fig. 33)lwhich are arranged to engage one of several pawls 194 pivoted to theside of the friction drum 130. A ten sion spring 195 connected to theframe 181. normally holds the friction wheel 186 out of contact with thefriction wheel 187. The action of the spring is limited by contact ofthe arm 177 (Fig. 1) with a stop portion 196 on the warper framework. i

It will be seen that when the operative theconstantly-rotating frictionwheel 187,.

whereby the pinion 191 will be driven. -In the resulting rotation of thespur gear wheel I192, one of the teeth 193 will engage one of the pawls194 and cause the ybrake drum 130 and hence the shaft 124' to'rotate. YThe section beam B thereby `will be'rotated slowly. When the operativehas found the thread end she removes her foot fromthe treadle, whereuponthe spring 195 throws out-the low-speed mechanism. Afterhaving pieced upthe thread the operative may again depress the treadle to 4turn the beamat low speed. until the slack injthe pieced-up thread has been taken upand all ofthe threads are running properly. The apparatus is now readyto be operated at high speed. To re-f; move the drag' pressure from thecheeses and to connect the high-speed drive to the shaft 124, theoperative draws forward a hand lever 197 (Figs. 1 and 2) pivoted inthewarpe'r framework. T1 said lever is p'rvoted the lower end of a link198, the upper end of which is connected to one arm of a .bell crank 199(Fig.'20) loosely'mounted upon the shaft 140. A rod 200 has apinand-sl0t connection-with the' other arm of the bell\crank 199. Saidrodis pivoted to an arm 201 (Figs. 23 and 25) which is rigid with thebelt shifter arm 155. Thus -it will be vseen that whenthe. operativedraws thel hand lever 197\forward the belt shifterwill be actuatedtoplace the belt on the tight pulley 152, whereby the wheel 144 will be`set in rotation to swing. thearm 82 ,from the v from the cheeses.

position shown in Fig. 24 to thatvshown in Figa/21 and 22. The dragpressure is thereby removed fromthe cheeses. At the same time thehigh-speed drivingk mechanism is connected to the shaft 124. This iseffected by the means to be now described.

The high-speed mechanism (fully described in application Serial No.190,502) is thrown in by means of a coiled spring 202 (Fig. 32). One endof said spring bears against a col ar 203 fixed on the shaft 124, whilethe her end of the spring bears against a sleeve 204 which is slidableupon the shaft 124. Associated with the sleeve 204 is a roller stud 205which is engaged by al cam 206 fixed upon the shaft 136.v `Vhen theshaft 73 is turning into the position shown in Figs. 1 and 21f(whereinthe drag pressure is off the cheeses) the train of conmotions 143, 142,14.1, 139, 13s, 137 and 136 is actuated to turn the cam 206 intoposition to allow the spring 202 to connect the high speed mechanismwith the shaft 124. The high-speed mechanism then commences'toaccelerate the section beam.

The detector circuit is closed across the contacts 111 by the switch109' (Figs. 22 and 34) as the drag pressure is being removed A shortspace of Vtime then elapses before the high-speed mechanism begins toaccelerate the warp beam. During the interval between the removal of thedrag pressure and the starting of the beam, one or more detectors mayfall through casual slackening of the corresponding threads. To preventthe brake mechanism from being actuated during this interval -and luntilafter the beamv has turned S0 as to take up slackness in .any of thethreads and thus raise the corresponding detectors, I provide themechanism shown in Fig. 34. 207 are hooked spring contacts included inthe circuit of the detectors. The

spring hooks 207 are arrangedto' engagea t contact 208jl1aving the formof a ring. The

ring 208 is carried by but ins ated from' a collar 209 which is slidablymounted upon a spindle 210. A coiled expansion spring 211 bears at oneend against a collar 212 on said spindle and at its other vend-againstthe collar 209 yieldingly to hold the collaragainst a shoulder 210 onthe spindle 210. AY coiled expansion .spring 213 interposed betweenastationary part and the collar 212 tends to move the splndle 210downward-to disengage the ring contact 208 from the hook contacts 207.To move the spindle/210 upwardly for the purpose of placing thecontact208 in engagement with the contacts 207,1 provide a fly-ballgovernor comprising bell cranks 214 carried by a ring 215 fixed uponV avertical shaft 216. The bell cranks Y 214 arearrangedto move a lspindle217 which bears against the spindle 210. AThe shaft 216 is driven fromtheshaft 124 208 is engaged by the hook contacts 207.

Further upward movement of the 'spindle 217 is prevented by contact ofthe bell cranks 214'with their supporting ring 215. When the warper isbeing stopped the spring 213 expands as fast as the resistance of thegovv erno'r will permit, but the ring contact 208 is retained by thehook contacts 207 until .the downward movement of the'spindle 2 10 hascompressed the spring 211 to such a point that it is able to overcomethe friction between the ring contact 208 and the hook contacts 207,whereupon the contact 208 springs away'from the ,contacts 207.

`When the beam B has been filled, mechanism of any ordinary or preferredconstruction is automatically actuated to stop the warper by closing thecircuit of the elec- 'tromagnet 44. Such a mechanism isdiagrammaticallyindicated at M in Fig. 34. "When the mechanism Moperates, the beam brake and the creel brakes are applied as usual, andthe resetting mechanism'on the l creel immediately begins to operate torelease the beam brake and substitute the drag pressure for the brakepressure on the cheeses. The beam may then be disconnected from thecheeses by severing the threads in any suitable manner. Preferably thethreads are severed by striking them with a rodv in the region betweenthe detectors and the cheeses. In thus whipping out the cheeses it isdesirable, although not essential, that `the cheeses be held againstrotation. Therefore, `means have been provided whereby the creel brakescan be applied without putting the resetting mechanism into operation.It

will be remembered that the cam 161 on the shaft 73 (Figs. 22 and 25)Vactuates the beltshifter lever 156- whenever the brakes are applied, thenormal effect being to shift the belt from .the loose pulley .15,3 tothe tight pulley 152, thereby placing the resetting mechanism inoperation. To render possible the application of the brakes withoutplacing the resetting mechanism in action, the belt shifter is formed ofthe two sections 155 and 156 as heretofore describe f, said sectionsbeing normally rigidly connected together by means of the spring plunger158` (Fig. 25). The plunger 158 may be disengaged from the shiftervlever 1 56 by any suitable means, as, 'for example, a hand' lever 226(Fig. 1) connected to said plunger by means of a od or wire 227. 228(Fig. 3) is a spring anchored at one end to the framework and connectedvat its other end `to a loop 229 (Figs.,23` and 25), said loop beingattached to the shifter arm 155. It will be seen that when the plunger158 is held out able that the warper of engagement with the shifterlever 156, the application of the brakes will not result in a shiftingofthe belt onto the tight pulley.

The means for manually causing an' application of the brakes comprises ahand lever 230 (Fig. 2), which hand lever is connected by means of alink 231 (Figs. 2, 3 and to a crank arm 232 loosely mounted on/ theshaft an arm 233 which is connected through a /link 234 to an arm' 235(Figs. 22 and 26). The arm 235 is loosely mounted on the shaft 90 andnormally bears against a pin 236 set in the `finger 89'. It will be seenthat when the operator pulls the hand lever 230 forward, the inger 89will be swung clear ofthe arm 88, whereupon the s rings 75 will causethe brakes to be applied? When the warper has come toa stop as theresult of completion of the yarn mass on the beam B, the operation is asfollows: The operative draws 197, thus causing the resetting mechanismto remove the drag pressure from the `cheeses and throw in the highspeeddrive for the beam. As soon as'the threadsl are under tension, theoperative pulls the lever 230- to setthe brakes and throw out the drive.As soon as the brakes have been applied, the operative pulls the lever226, thus disabling the belt shifterand preventing the brakes on boththe warper and the creel from being released. Qr the operative may graspthe lever 226 first and pull the plunger 158 out, thus disabling thebelt shifter, and then while continuing to hold this plunger out she maypull the lever 230 to set the brakes and throw out the drive. The beltshifter having been disabled, the warper brake and the creel brakes stayin the applied position. The threads are then broken by means of a'suitable implement, and the beam removed. When the t-ridents are ,beingremoved from the creel frame, the brake arms swing forward under thepressure of their sprin they interfere with the convenient insertion oftridents into the creel frame.` Hence it is desirable to withdraw orcompletely reset 'the creelvbrakes-before replacing the used tridentswith fresh tridents. But when the type of drive head described in saidapplication Serial No. 190,502 is used, it is desirbrake remain appliedduring the creel-replenishing operation. Therefore in order that theresetting mechanism may be placed in action to withdraw the creel brakeswithout releasing the beam brake or throwingH in the high-speed drivingmechanism,I provide means for disconnecting, the shaft 136 ,tingmechanism. This means is shown 1n Figs. 33 and 35. The arm 137 isloosely pivoted onv the shaft 136 and carries a pin 219 that overliesafla'nge, 220 von a crank tion by a 140. Rigid with the arm 232 isample,

forward the hand leverl cheeses.

sland thus assume a position wherein (Fig.'2) from the resetarm 221,said crank arm being fixed on the shaft 136. A latch 222 is pvoted at223 to the crank arm 221 and normally overlies the pin 219, the latchbeing held in such positension spring 224. When the parts are in theposition shown in Figs. 33 and 35, the pin 219 is held between" theflanges 220 and the; latch 222 so that when the arm 137 is moved theshaft 136 also will be turned. Any suitable means, as, for exa rod 225(Fig. 1) may be provided for moving the latch 222 out of engagement withthe pin 219. The rod 225 may be released as soon as the pin2l9 haswardly beside the latch 222. While holding saidlatch out, the. operativedraws forward lever 197 thereby setting the wheel 144 in, pressure fromrotation to removethe drag the cheeses and place the dog 80 inenga-gement with the locking shoulder 86, as in Fig. 21. The latch 222having been held out inthe meantime, the upward movement of the arm 137did not cause the shaft 136Y to turn and hence the warper brake was notreleasedv and the cam 206 was not actuated to allow the spring 202 tothrow in the highspeed driving mechanism. The creel brakes having beenthus fully reset, the operative 'may proceed to replace the tridents oneby one with tridents carrying full cheeses.

If desired, the creel may be provided with means for supporting anumber'. of extra cheeses, the yarn from which. may be substituted forthe yarn from any of the other Herein I have shown on each creel frame astand 237 (Fig. 3), each stand having two spindles 238 which are similarto the splndles of the tridents. Each spindle is arranged to support twocheeses. The stands 237 are omitted in the diagrammatic view,

Fig. 2. For each of the extra cheeses there sprocket wheel 241 is 4fixedupon a shaft 242 y on which the brake arms'are mounted in the mannerhereinbefore explained and as illustrated in Fig. 10. Each of the extracheeses is provided with a detector similar to those previouslydescribed, the extra cheese-detectors being connected into the circuitof the electromagnet 44. .On the front end of the creel is a horizontalrod 243 (Fig. 3) to support the strands from the extra cheeses above theother threads, in order that vsuch extra strands may runto-any space inthe comb 244 (Figs. 1 an 2") on thek warper. A

In the rear of the comb 244 is av guide-rod 245 for holding the lowerstrands out of contact with the back or body of the comb. If desired, arod 246 may. beprovided above the rod 245 to keep the topmost strands inthe comb. The rod 246 may be raised to give access to the comb when thethreads from a new set'of cheeses are to be laid in the comb. Forward ofthe comb is a guide roll 247. The parts 245, 246 and 247 are more fullydescribed in application Serial N o. 190,502. I l

As will be understood from Figs. 2 and 2", the cheeses revolve invertical planes which extend at angles other than' right angles to thevertical plane of the comb 244, the detectors serving to guide thethreads from the cheeses to the comb.

While any ordinary form of comb may be used on the warper, itispreferable to employ a comb the teethor spaces of which are so arrangedas to indicate the proper locations for the respective threads. In Fig.l is illustrated a comb the spaces of which are divided into sections,there being' as many sections as there are columns of cheeses, and eachsection containing as many spaces as there are cheeses in a column. VThesections are differentiated froineach other by making the teeth of eachsection of regularly increasing length, the shortest tooth heilig at theinner end of the section. As indicated in Fig. la, the space between thetwo middle sections is made slightly wider than the other spaces, assuch middle space receives two threads.

While it will be understood that the operation of replenishing the creeland placing the threads Vin the warper is susceptible of variousmodifications, the following is one method that may be pursued. Assumingthat the creel frame contains tridents carrying spent cheeses, that thebrakes are fully reset or withdrawn, and that there is an empty sectionbeam B in the warper:

`The gates 12 are opened and the tridents replaced with tridentscarrying full cheeses. The operative then pulls the lever 230, thuscausing the the creel brakes to be applied and immediately ,reset todrag position, and the beam brake to be released. The operative thencollects the, threads of the column of cheeses which is nearest thewarper at, say, the right-hand side of the creel. beginning at thetop'of the column and drawing the thread-ends down to the bottom, thethreads twisting together into a bunch. Having thus collected thethreads of the four colulnns of the bay, the operative closes the gatel2, reaches through the gate and picks up the bunches of threads, anddraws the bunches of threads over to the warper. As the bunches ofthreads are drawn to the warper, the plates 34 guide the threads intocontact with their respective detector arms,

each of said arms swinging upwardly to permit the threads from highercheeses to pass up into contact with their proper detectors. Havingdrawn the bunches of threads to the warper, the operative passes thembeneath the guide rod 246, and lays the threads into the spaces in thecomb 244, the lowermost thread of the bunch that comes from the columnof cheeses nearest the warper being laid in the middle space of thecomb, and the remaining threads of said bunch being laid in the comb inregular succession toward the right. The threads of the next column ofcheeses are then laid into the nextsection of the. comb, and so on.After all of the threads from the right-hand side of the cree] have beendeposited in the comb, the threads from the other side of the creel arebrought forward and placed in the comb` after which all of the threadsare drawn down over the roll 247 into position to be connected to thesec tion beam. As the threads were drawn forward to the warper they rodeup the inclined or rounded surfaces of the plates 34, 32 and 31, thedirection of pull upon the threads in passing from the cheeses to thewarper being such that the threads slid upwardly along said plates,raising the dctcetors into normal position as shown in full lines inFig. 14, and sliding down the detectors into running position. Asindicated in Fig. 1. the detectors for the. different cheeses areAlocated at such heights that the threads shall be able to slide intorunning position. as just described. the detectors fer the. lowercheeses being located relatively higher than the dctcctois for the uppercheeses. lt will be seen that the threads are automatically drawn in toor associated with their respective detectorsI in the simphl act ofdrawing the threads forward from 'the creel to the warper. therebyeffecting a great saving in time over warping appa ratus wherein thedetectors are. located on the warper. As is well understood. when thedetectors are located on the warper. they are necessarily crowded soclosely together that the operative` must pay particular attention tothe operation of associating successive threads with the properdetectors. Owing to the fact that each thread must he separatelyassociated with .its detector. the operative cannot lay thc threads intothe combs on the old-style warper as rapidly the the machine hereindisclosed. Moreover, in the old-style warper. two combs are required,one at each side of the detectors. and two rolls. whereas in the presentmachine but one comb and one roll are needed.

The correct placing of the threads in the comb 244 is facilitated byreason of th.1 fact that there is an individual comb section for eachbunch of threads. that `there same operation can be performed upon arejust enough spaces in each section to accommodate the threads in abunch, and that the teeth are of graduated length. When laying threadsin the comb, the longest tooth of each section serves as a stop inpositioning the bunch of threads that belong in the next adjacentsection.

The threads of a bunch can be readily laid in their respective spaces inthe comb, as the threads fan out or diverge from the operatives handf,ythe bunch of diverging vthreads being inclined in the same generaldirection as the upper edge of the comb section. If a thread be missingfrom a bunch, there will be a vacant space in the comb section, thusimmediately bringing the matter to the attention of the operative.

Inasmuch as the thread from the lowestcheese in a column extends throughthe shallowest space in its section, and so on progressively, a vacantspace occurring in the comb upon a stoppage ofthe warper indicates tothe operative the location of the cheese thethread of 'which is missing,thus expediting the work of piecing-up broken threads.

.Since the drive-head is located centrally lbehind the warper, said headand the drive belt are out of the way of the operative,-a

feature of particular value during the replenishing operation andA inpiecing up threads.

The threads having all been drawn forward and connected to the beam asbefore described, the operative depresses the treadle 174 to revolvethebeam at low speed until it is notedY that all ofthe threads arewinding properly. The operativethen releases vthe treadle 174 and pullsforward the starting hand lever 197, thus (through the connections 198,199 and 200) operating the belt shifter to shift the belt 154 from theloose pulley 153 to the tight pulley 152. The resetting mechanism isthereby placed in operation to remove the drag pressure from the cheesesand throw in the high-'speed driving mechanism for the fwarper. At theend of the resetting operation, the cam 170 (Fig. 24) operates the latc163 to release the belt shifter to the action of the springs 160 and228, whereupon the belt is shifted to the loose pulley.

4The hi` h-speed -driving mechanism accelerates the beam B uniformly andslowly until full winding 'speed is reached. If duringr the winding anyof the'detectors should drop into the dotted-line position shown at aiin Fig. 14, a circuit will be closed through the electromagnet 44,whereupon thesprings apply the creel brakes, the spring means 133applies the beam brake,

' and the cam 206 throws out the high-speed driving mechanism. At thesame time the mechanism thus placed in operation to re lease the beambrake and move the brake shafts 46 from the brake position to the dragposition. The beam brake is not released nor the cheeses relieved of thebrake pressure until the machine has come to a stop. After correctingthe cause `of the stoppage, the operative may,-by depressing the treadle174, place the warper in slow operation until she observes that all ofthe threads are running prbperly. The drag pressure is then removed andthe high-speed driving mechanism thrown in by means of the hand lever197.

It willl be seen that the means for throwing in the high-speed drivingmechanism is mechanisms have both been controlled by a single treadlepartial depression of the treadle throwing in the low speed and completedepression throwing in the high speed. It was thus possibleinadvertently to put the machine in high speed when the beam should berotated slowly.

It will also be apparent that the highspeed-controlling cam 206 is notdirectly actuated by gthe operative, but, on the contrary, is actuatedby the resetting mechanism and therefore is always operated in a properand definite manner and in correct sequence with regard to the operationof the creel brakes.

In the event that the 'operative should pull forward the high-speedstarting lever 197 whiledepressing the treadle 174, the` drivingmechanism would notV beinjured, since the pawls 194 (Fig. 33) wouldsimply revolve faster than the teeth 193 and would eventually bewithdrawn from the path of said teeth by centrifugal force.

The comb 244 is claimed in my application Serial No. 611,213, filedJanuaryS, 1923. The operative may stop the warper at any desired time byoperating the hand lever 230.

As indicated in Figs. 1 and 6, the threads extend directly from thedetectors on the creel to the guiding devices' on the warper, thedetectors thus serving as thread guides, rendering unnecessary the useof any other means on the creel for guiding the running threads. ItA4will be apparent that the devices herein shown for guiding the threadsAfrom the cheeses to the beam place a minimum amount of tension on thethreads.

A s hereinbefore described, each detector consists of a loop 'providingtwo points of belt 154 is shifted to the tight pulley 152 by7 thread tobe drawn into the form ofV twothe cam 161 (Fig. 25) and the resettingloops, as indicated in Fig. 19. By reason of-

